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W. J, TRIPP. LOGOMOTIVE ENGINE. v No. 369,482. Patented Sept. 6, 1887.

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' W. J TRIPP. LOCOMOTIVE ENGINE.

No. 369,482. Patented Sept. 6, 1887.

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LOCOMOTIVE-ENGINE.

SPECIFICATION forming part of Letters Patent No. 369,482, dated September 6, 1887.

Application filed November 4, 1886.

To aZZ whom it may concern.-

Be it known that 1, WILLIAM J AY TRIPP, of the city, county, and State of New York,have invented a new and Improved Locomotive- Engine, of which the following isa full, clear, and exact description.

The object of my invention is to provide a locomotive-engine intended for high speedthat is, one provided with drive-wheels of large diameter, and which is constructed to avoid top heaviness, the preponderance of weight being below the main axle and as near the track as possible, so that the locomotive running at high speed will not have more lurch than a locomotive of the ordinary construction and design.

The invention consists of the various constructions and arrangements of the parts of the locomotive, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of a locomotive made in accordance with my invention. Fig. 2 is a transverse sectional elevation. Fig. 3 is a detailed view of a part of the boiler and main axle; and Fig. 4 is a plan view of the frame of the engine and the drive-wheels, the boiler and cab being shown in dotted lines.

The cab A, front and rear trucks, B O, and cylinders D are of the usual construction, except that the cylinders are somewhat elevated to suit the elevated position of the main axle E, and that the wheels of the trucks are somewhat less in diameter than usual to set the main frame F as low as practicable. The drive-wheels G are of large diametertwelve feet or thereabout-and the main axle E, on which they are secured, passes through the boilerH above the dues J, so that the preponderance of weight of the boiler is below the main axle A transverse tube, K, is fitted in the boiler H for the passage of the axle E, and the boiler is flattened at its sides and elongated vertically to gain as great boiler area as possible, and yet furnish space between the Serial No. 217.979. (No model.)

sides of the boiler and the drive-wheels for the eccentrics L L and the springs M M, supported upon axle-boxes next to the drive-wheels. The main frame F reaches from the forward truck, B, to the rear truck, 0, and the boiler and the accessories of the locomotive are supported by it, and it is connected to the ends of the heavy springs M M by the side upright standards or frames, 3 M, so that the boiler and main frame are suspended in the center by the springs from and below the main axle, and the transverse tube K through the boiler is made considerably larger than the main axle E, so there is no direct connection of the boiler with the axle. I

To compensate in a degree for the elevation of weight due to elevating the cylinders D, the cross-heads O, pitman-rods O", and crosshead guide-bars G in line with the axle E, (which, by the way, might be avoided by an oblique arrangement of thecylinders and crosshead guides, which, for the sake of appear ance, I prefer to avoid,) I place the steamchests N below the cylinders. The links and valve-motion O are placed in line with the steam-chests, and the link-connecting rods 0 are projected obliquely downward from the eccentrics L to suit this location, as shown clearly in Fig. 1.

At the front of the boiler, upon a platform, P, is placed the pilot-house Q, for the engineer, so he will have an unobstructed view of 80 the track, and upon the pilot-house is placed the head-light R, as shown in Fig. 1, and by means of red (I and bell-crank f the engineer will have control of the valve-motion for starting and stopping the locomotive.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The boiler H of a locomotive-engine, having the transverse tube K fitted in it above the dues J and in front of the fire-box, in (301.11- bination with the axle E, passed through the tube K, the drive-wheels G, of large diameter, and the frame F, supporting the boiler and suspended from the springs M,supported upon the axle-boxes, whereby the preponderance of weight of the boiler is below the axle and inders D, elevated to a line with the axle, and the boiler relieved of the jar of the drive the steam-chests N, placed beneath the cylin- 10 Wheels, substantially as described. ders, whereby the Weight of the steam-chest 2. The locomotive-boiler H, provided with falls below the axle,substantial1y as described. 5 the transverse tube K above the fines J and in front of the fire-box, in combination with Witnesses:

the axle E, passed through the tube K, the H. A. \VEsT, drivewheels G, of large diameter, and the eyl- EDGAR TATE.

WILLIAM JAY TRIPP. 

